# Service bulletin PIT5125B

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10100030
- Published by NHTSA: 2017\-05\-22
- Manufacturer's number: PIT5125B
- Manufacturer's date: 2016\-09\-19
- NHTSA component: EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:BRAKE LIGHTS

## NHTSA's summary

THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT VEHICLES PROPER OPERATION OF THE STOP AND/OR TURN SIGNALS. FOR VEHICLES WITHOUT REGULAR PRODUCTION OPTION CODE V4D CIRCUIT 618 IS FOR THE LEFT STOP AND TURN SIGNAL AND CIRCUIT 619 DARK GREEN IS FOR THE RIGHT STOP AND TURN SIGNAL. FOR VEHICLES WITH REGULAR PRODUCTION OPTION CODE V4D CIRCUIT 618 YELLOW IS FOR THE LEFT TURN SIGNAL ONLY. CIRCUIT 619 DARK GREEN IS FOR THE RIGHT TURN SIGNAL ONLY AND CIRCUIT 1320 LIGHT BLUE IS FOR THE STOP LAMPS ONLY.

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Lighting, Brake lights, Turn signals

## Vehicles listed

- 2009 to 2017 CHEVROLET EXPRESS
- 2009 to 2017 GMC SAVANA

## Other bulletins for the same vehicles and component

- [PIT5125A](/bulletins/10247067.md), 2023-12-11, Service bulletin: EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:BRAKE LIGHTS. Available Stop And Turn Lamp Options/Diagnostic Information
- [PIT5125D](/bulletins/10154588.md), 2019-03-18, Service bulletin: EXTERIOR LIGHTING:TURN SIGNAL. This Preliminary Information communication provides information to the technician about vehicles proper operation of the stop and/or turn signals. For vehicles without Regular Production Option Code V4D circuit 618 is for the left stop and turn signal and circuit 619 dark green is for the right stop and turn signal. For vehicles with Regular Production Option Code V4D circuit 618 yellow is for the left turn signal only. Circuit 619 dark green is for the right turn signal only and circuit 1320 light blue is for the stop lamps only.
- [16\-NA\-345](/bulletins/10137632.md), 2018-05-21, Service bulletin: SERVICE BRAKES; EXTERIOR LIGHTING:TURN SIGNAL; ELECTRICAL SYSTEM:SOFTWARE. This Technical bulletin provides information for reprogramming the BCM due to software anomaly causing the turn signals to engage when depressing the brake pedal.
- [PIT5125C](/bulletins/10126977.md), 2018-01-16, Service bulletin: EXTERIOR LIGHTING:TURN SIGNAL. This Preliminary Information communication provides information to the technician about vehicles proper operation of the stop and/or turn signals. For vehicles without Regular Production Option Code V4D circuit 618 is for the left stop and turn signal and circuit 619 dark green is for the right stop and turn signal. For vehicles with Regular Production Option Code V4D circuit 618 yellow is for the left turn signal only. Circuit 619 dark green is for the right turn signal only and circuit 1320 light blue is for the stop lamps only.
- [02\-08\-42\-001I](/bulletins/10116890.md), 2017-08-31, Service bulletin: EXTERIOR LIGHTING:HEADLIGHTS; EXTERIOR LIGHTING:BRAKE LIGHTS; EXTERIOR LIGHTING:BACK UP LIGHTS. This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and what should be considered warranty replacement and not
- [PIT\-5122\-C](/bulletins/10044879.md), 2012-08-02, Service bulletin: VEHICLE SPEED CONTROL:CRUISE CONTROL; EXTERIOR LIGHTING:BRAKE LIGHTS. GENERAL MOTORS: SERVICE STABILITY MESSAGE LOW POWER BRAKE LIGHT AND CRUISE CONTROL OPERATION\- DTC C0161 AND/OR C0277. NEW FOR THE 2012 MODELS IS A DUAL BRAKE PEDAL POSITION \(BPP\) SENSOR \(TWO SENSORS IN ONE\). THE DUAL BPP REPLACES THE OLD STYLE OPEN/CLOSED BRAKE SWITCH WHICH HAS BEEN USED FOR YEARS. \*JS MODELS 2012\-13 ALL ESCALADES; AVALANCHE, EXPRESS, SILVERADO, SUBURBAN, TAHOE; SAVANA, SIERRA, ALL YUKONS AND DENALIS. UPDATED 11/28/12. \*PE
- [PIT\-4748](/bulletins/10030673.md), 2009-11-10, Service bulletin: EXTERIOR LIGHTING:TURN SIGNAL; EXTERIOR LIGHTING:BRAKE LIGHTS. CHEVROLET/GMC: SOME VEHICLE UPFITTERS, PRIOR TO COMPLETION OF THEIR WORK ON THE INCOMPLETE VEHICLE \(CUTAWAY VANS\), MAY COMMENT THAT THE RIGHT REAR TURN SIGNAL AND STOP LAMPS ARE BOTH INOPERATIVE. THIS CAN BE CAUSED IF CIRCUIT 6519 IS IN THE WRONG CAVITY ON CONNECTOR X2 AT THE UNDERHOOD FUSE BLOCK. \*PE

JSON: [/v1/bulletins/10100030](/v1/bulletins/10100030)

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